inS_cnge2fe16MS_reV–
01/11/12 Page 85
INSTALLATION AND OPERATION MANUAL
CNGE2FE16MS
TECh SUPPORT: 1.888.678.9427
QoS Configuration
In general, traffic on networks is treated as the same priority and delivered equally. With QoS
enabled, users can classify frames or packets into different priorities to ensure specific network
traffic is delivered on a foundation of best-effort. The incoming frames or packets can be sent to
different priority queues for different priority service according to the configured polices.
QoS Policy
Select one of the two radio buttons to determine the QoS policy—an
8-4-2-1 weighted fair
queuing scheme
or a
strict priority scheme
. The 8-4-2-1 weighed fair queuing scheme designed
with four queues to which allocate traffic in the rate of 8:4:2:1. As for the strict priority scheme,
traffic will be identified according to the priority determined.
QoS Policy
Select the QoS policy rule.
»
Use an 8,4,2,1 weighted fair queuing scheme
: The switch will follow the ratio of 8:4:2:1 to
process priority queues including High, Middle, Low and Lowest. For example, while the
system processing, 1 frame in the lowest queue, 2 frames in the low queue, 4 frames in
the middle queue, and 8 frames in the high queue will be processed at the same time in
accordance with the 8,4,2,1 policy rule.
»
Use a strict priority scheme
: With this radio button selected, you have to select the pull-down
menu labeled
Priority Type
.
»
Priority Type
: Five options
Port-based
,
TOS only
,
COS only
,
TOS first
, and
COS first
.
Disable
means QoS function is not activated.
»
Select
Apply
to have the configuration take effect.
Figure 78 – QoS Configuration interface
